How do I find a chord in a specific key?

Choose your tonic, then search or filter the chord list to open a chord details page with diagrams and interval information.

What can I use the chord library for?

Use the chord library as a quick reference for chord names, aliases, and practical details before practice, songwriting, or arrangement.

Chord Library - Select a chord

Find new chords in the extensive chord library. Examples on how to construct and play nearly any chord you can think of are included in the pages. You will also find cheat sheets with sheet music, piano chords and guitar chords in any key.

Quick-select chord families

Major Minor Dominant 7 Diminished Augmented Suspended

Featured chords in D flat

C Major - Sheetmusic Chord - Treble clef

D flat Major

Major triad (1-3-5); stable tonic color and foundation of tonal harmony.

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D flat Minor

Minor triad (1–♭3–5); stable minor color, relative to major by lowering the third.

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Guitar voicing #2 of the C Minor seventh chord

D flat Minor seventh

Minor seventh (1–♭3–5–♭7): the everyday minor-seventh stack behind ii7, i7 vamps, and R&B shells—not the major-seventh minor color of mM7.

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C Major seventh - Sheetmusic Chord - Bass clef

D flat Major seventh

Major seventh (1–3–5–7); stable major color with leading-tone pull to the octave.

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C Augmented - Sheetmusic Chord - Alto clef

D flat Augmented

Augmented triad (1–3–♯5); symmetric stacks and whole-tone color.

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Guitar voicing #1 of the C Dominant ninth chord

D flat Dominant ninth

Dominant seventh with added ninth; richer dominant tension that still resolves strongly to tonic.

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	Aliases
D flat Major	M, ^, , maj	Beginner
D flat Dominant ninth	9	Beginner
D flat Minor	m, min, -	Beginner
D flat Augmented	aug, +, +5, ^#5	Beginner
D flat Major seventh	maj7, Δ, ma7, M7, Maj7, ^7	Beginner
D flat Minor seventh	m7, min7, mi7, -7	Beginner
D flat Fifth	5	Beginner
D flat Dominant seventh	7, dom	Beginner
D flat Altered seventh	alt7	Easy
D flat Diminished	dim, °, o	Easy
D flat Dominant ninth sharp eleventh	9#11, 9+4, 9#4	Easy
D flat Major sixth	6, add6, add13, M6	Easy
D flat Minor major seventh	m/ma7, m/maj7, mM7, mMaj7, m/M7, -Δ7, mΔ, -^7, -maj7	Easy
D flat Minor sixth	m6, -6	Easy
D flat Major ninth	maj9, Δ9, ^9	Easy
D flat Minor seventh add eleventh	m7add11, m7add4	Easy
D flat Minor seventh flat fifth	m7b5, ø, -7b5, h7, h	Easy
D flat Minor ninth	m9, -9	Easy
D flat Dominant ninth flat fifth	9b5	Easy
D flat Minor add ninth	madd9	Easy
D flat Dominant ninth suspended fourth	9sus4, 9sus	Easy
D flat Major seventh suspended fourth	M7sus4	Easy
D flat Major ninth suspended fourth	M9sus4	Easy
D flat Major ninth flat fifth	M9b5	Easy
D flat Minor ninth flat fifth	m9b5	Easy
D flat Dominant eleventh	11	Easy
D flat Dominant thirteenth no fifth	13no5	Easy
D flat Sixth add ninth	6add9, 6/9, 69, M69	Easy
D flat Diminished seventh	dim7, °7, o7	Easy
D flat Minor eleventh	m11, -11	Easy
D flat Major thirteenth	maj13, Maj13, ^13	Easy
D flat Dominant seventh no fifth	7no5	Intermediate
D flat Dominant ninth sharp fifth	9#5, 9+	Intermediate
D flat Dominant ninth sharp fifth sharp eleventh	9#5#11	Intermediate
D flat Ninth no fifth	9no5	Intermediate
D flat Major sixth sharp eleventh	M6#11, M6b5, 6#11, 6b5	Intermediate
D flat Minor ninth sharp fifth	m9#5	Intermediate
D flat Dominant thirteenth	13	Intermediate
D flat Major seventh flat fifth	M7b5	Intermediate
D flat Major add ninth	Madd9, 2, add9, add2	Intermediate
D flat Major ninth sharp fifth	maj9#5, Maj9#5	Intermediate
D flat Dominant seventh flat sixth	7b6	Intermediate
D flat Major seventh flat sixth	M7b6, ^7b6	Intermediate
D flat Minor sharp fifth	m#5, -#5, m+	Intermediate
D flat Dominant seventh sharp eleventh	7#11, 7#4	Intermediate
D flat Dominant seventh flat ninth	7b9	Intermediate
D flat Major sharp fourth	maj#4, Δ#4, Δ#11, M7#11, ^7#11, maj7#11	Intermediate
D flat Minor add fourth	madd4	Intermediate
D flat Dominant ninth flat thirteenth	9b13	Intermediate
D flat Fourth	4, quartal	Intermediate
D flat 69 sharp 11	69#11	Intermediate
D flat Dominant seventh sharp eleventh flat thirteenth	7#11b13, 7b5b13	Intermediate
D flat Dominant seventh flat thirteenth	7b13	Intermediate
D flat Major seventh flat ninth	M7b9	Intermediate
D flat Minor six-nine	m69, -69	Intermediate
D flat Minor eleventh augmented	m11A	Intermediate
D flat Dominant ninth sharp eleventh flat thirteenth	9#11b13, 9b5b13	Expert
D flat Dominant thirteenth suspended fourth	13sus4, 13sus	Expert
D flat Dominant seventh sharp ninth	7#9	Expert
D flat Dominant seventh add sixth	7add6, 67, 7add13	Expert
D flat Major thirteenth sharp eleventh	M13#11, maj13#11, M13+4, M13#4	Expert
D flat Dominant seventh sharp ninth sharp eleventh	7#9#11, 7b5#9, 7#9b5	Expert
D flat Minor thirteenth	m13, -13	Expert
D flat Augmented add sharp ninth	+add#9	Expert
D flat Seventh suspension four	7sus4, 7sus	Expert
D flat Major ninth sharp eleventh	maj9#11, Δ9#11, ^9#11	Expert
D flat Dominant thirteenth sharp ninth	13#9	Expert
D flat Dominant seventh flat ninth sharp eleventh	7b9#11, 7b5b9, 7b9b5	Expert
D flat Dominant thirteenth sharp eleventh	13#11, 13+4, 13#4	Expert
D flat Dominant seventh sharp fifth sharp ninth	7#5#9, 7#9#5, 7alt	Expert
D flat Dominant seventh sharp fifth flat ninth	7#5b9, 7b9#5	Expert
D flat Dominant thirteenth flat fifth	13b5	Expert
D flat Dominant thirteenth flat ninth	13b9	Expert
D flat Dominant seventh sharp fifth suspended fourth	7#5sus4	Expert
D flat Major seventh add thirteenth	M7add13	Expert
D flat Major seventh sharp fifth	maj7#5, maj7+5, +maj7, ^7#5	Expert
D flat Major seventh sharp ninth sharp eleventh	maj7#9#11	Expert
D flat Dominant eleventh flat ninth	11b9	Expert
D flat Dominant seventh flat fifth	7b5	Expert
D flat Minor seventh sharp fifth	m7#5	Expert
D flat Dominant thirteenth sharp ninth sharp eleventh	13#9#11	Guru
D flat Dominant thirteenth flat ninth sharp eleventh	13b9#11	Guru
D flat Dominant seventh sharp fifth	7#5, +7, 7+, 7aug, aug7	Guru
D flat Minor major ninth	mM9, mMaj9, -^9	Guru
D flat Dominant seventh sharp ninth flat thirteenth	7#9b13	Guru
D flat Dominant seventh sharp fifth flat ninth sharp eleventh	7#5b9#11	Guru
D flat Major flat fifth	Mb5	Guru
D flat Dominant seventh sharp ninth sharp eleventh flat thirteenth	7#9#11b13	Guru
D flat Dominant seventh flat ninth sharp ninth	7b9#9	Guru
D flat Dominant seventh flat ninth flat thirteenth	7b9b13	Guru
D flat Major add flat ninth	Maddb9	Guru
D flat Dominant seventh flat ninth flat thirteenth sharp eleventh	7b9b13#11, 7b9#11b13, 7b5b9b13	Guru
D flat Dominant seventh suspended fourth flat ninth flat thirteenth	7sus4b9b13, 7b9b13sus4	Guru
D flat Major sharp fifth add ninth	M#5add9, +add9	Guru
D flat Major seventh sharp fifth suspended fourth	M7#5sus4	Guru
D flat Major ninth sharp fifth suspended fourth	M9#5sus4	Guru
D flat suspended fourth flat ninth	b9sus, phryg, 7b9sus, 7b9sus4	Guru
D flat Minor major seventh flat sixth	mMaj7b6	Guru
D flat Minor major ninth flat sixth	mMaj9b6	Guru
D flat Minor flat sixth major seventh	mb6M7	Guru

Chord library for practical music theory and harmony

Use this chord library to study chord formulas, chord quality, inversions, extensions, and common aliases in every key. Each chord page helps you understand the intervals and notes inside the chord so you can apply harmony with confidence.

Start with essential triads and seventh chords, then continue into altered and extended harmony for songwriting, improvisation, and arranging. For a complete workflow, combine this library with the scale libraryand the interval guideto hear how harmony and melody connect in real music.